Suspension controller and sensor network for ride height control with air suspension

A method for controlling a vehicle air suspension, the method comprising:

• receiving, by a suspension controller, first motion sensor data from a first motion sensor, wherein the first motion sensor is attached to a chassis of a vehicle;
• receiving, by the suspension controller, second motion sensor data from a second motion sensor, wherein the second motion sensor is attached to a suspension member of the vehicle, wherein the suspension member pivots relative to the chassis of the vehicle;
• determining, by the suspension controller, a relative angular position of the suspension member as a function of the first motion sensor data and the second motion sensor data;
• and adjusting, by the suspension controller, an air suspension of the vehicle based on the relative angular position.

A method for calibrating a vehicle air suspension, the method comprising:

• controlling, by a suspension controller, an air suspension of a vehicle to extend to a top of travel;
• reading, by the suspension controller, a top of travel value from a first motion sensor coupled to a suspension member of the vehicle in response to controlling the air suspension to extend to the top of travel, wherein the suspension member pivots relative to a chassis of the vehicle;
• controlling, by the suspension controller, the air suspension to retract to a bottom of travel;
• reading, by the suspension controller, a bottom of travel value from the first motion sensor in response to controlling the air suspension to retract to the bottom of travel;
• determining, by the suspension controller, a differential travel value as a function of the top of travel value and the bottom of travel value;
• and scaling, by the suspension controller, relative angular position data from the first motion sensor based on the differential travel value.